Optical birefringence of aorta tissues

The optical birefringence of porcine aortic tissues including heated and non-heated tissues was studied using polarization technique. The measurements show that a whole piece of aortic tissue has birefringence properties like a uniaxial crystal. The experiment results indicate that the birefringence status of tissue have a potential application for monitoring changes of tissue structure due to burning, plastic surgery, laser tissue welding and wound healing.